<template>
    <div>
      <div class="Search">
        <input type="text" placeholder="输入城市名或拼音" class="search-input" v-model="keyWord">
      </div>
      <div class="search-content" ref="search"  v-show="keyWord">
        <ul>
          <li
           class="search-item border-bottom"
           v-for="item in list"
           :key="item.id"
           @click="handleCityClick(item.name)"
             >{{item.name}}</li>
          <li class="search-item border-bottom" v-show="hasNoData">没有找到匹配数据</li>
        </ul>
      </div>
    </div>
</template>

<script>
import {mapMutations} from 'vuex'
import Bscroll from 'better-scroll'
export default {
  name: 'Search',
  props: {
    cities: Object
  },
  data () {
    return {
      keyWord: '',
      list: [],
      timer: null
    }
  },
  computed: {
    hasNoData () {
      return !this.list.length
    }
  },
  watch: {
    keyWord () {
      if (this.timer) {
        clearTimeout(this.timer)
      }
      if (!this.keyWord) {
        this.list = []
        return
      }
      this.timer = setTimeout(() => {
        const result = []
        for (let i in this.cities) {
          this.cities[i].forEach((value) => {
            if ((value.spell.indexOf(this.keyWord) > -1) || (value.name.indexOf(this.keyWord) > -1)) {
              result.push(value)
            }
          })
        }
        this.list = result
      }, 100)
    }
  },
  methods: {
    ...mapMutations(['changeCity']),
    handleCityClick (city) {
      // this.$store.commit('changeCity', city)
      this.changeCity(city)
      this.$router.push({'name': 'Home'})
    }
  },
  mounted () {
    this.croll = new Bscroll(this.$refs.search)
  }
}
</script>

<style scoped lang="stylus">
  @import "~styles/variable.styl"
.Search
  height: .72rem
  padding: 0 .1rem
  background: $bgColor
  .search-input
    height: .62rem
    line-height: .62rem
    width: 100%
    text-align:center
    border-radius: .06rem
    color: #666
    box-sizing: border-box
    padding: 0 .1rem
.search-content
  position: absolute
  top: 1.58rem
  left: 0
  right: 0
  bottom: 0
  background: #eee
  z-index: 1
  overflow: hidden
  .search-item
    line-height: .62rem
    height: .62rem
    padding-left: .2rem
    background: #fff
    color: #666
</style>
